depends on which era Chris we are talking about, for the sake of simplicity and branching what if scenarios we will use current Chris, context is also important like is this someone squaring off with Chris or someone just walking up and punching him? maybe I'm looking too much into this and will assume its current Chris with someone just walking up and punching him. It would definitely hurt like hell and Chris would likely double over and most likely Shit himself while also definitely breaking down into tears with possible vomit depending on how hard the punch was and if he had just eaten and etc. there's also the very very very unlikely but not entirely possible option where that punch is the final breaking point and then a fight breaks out with him releasing tard rage, but that's all theory and likely an unrealistic outcome